Table 1.

Patients condition

Patients					Operation condition
Case	Gender	Age at operation (years + months)	Hemi site	Follow-up	MVCR	Blood loss operation (ml)	Estimated blood (%)	Blood loss postop (ml)	Estimated blood (%)	Operation time (min)	Fused segment
1	F	27 + 5	T11	2 years 11 months	2.5	2,500	57	750	17	310	7
2	F	20 + 6	L1	2 years 7 months	3	3,000	79	1,910	51	310	7
3	F	43 + 2	L1	2 years 8 months	3	3,200	79	860	21	210	7
4	F	28 + 1	T11/12	3 years 2 months	2	2,100	57	780	21	245	7
5	M	40 + 7	T12	2 years 2 months	2	1,800	31	665	11	250	8
6	M	21 + 11	T11	3 years 3 months	3	3,000	54	585	10	245	8
7	M	30 + 6	T11	2 years 4 months	3	2,700	54	490	9	350	12
8	F	22 + 10	L2	2 years 1 month	2.5	2,800	70	590	15	260	8
9	F	41 + 5	L1	2 years	2.5	1,950	47	770	18	245	8
10	M	36 + 10	L2	2 years 5 months	2	2,600	44	830	14	220	7
11	F	29 + 2	L2	2 years 3 months	2.5	1,800	44	950	23	305	7
12	M	38 + 7	L1	2 years 9 months	2	1,900	40	990	18	208	7
13	M	22 + 6	T12	2 years 4 months	2	2,000	37	430	8	300	7
Average		31 + 0		2.54 years	2.46	2,411.54	54	815.38	18	266	7.69